A biological information processing system, a wearable device, a server system, a method for controlling a biological information processing system, a program, and the like make it possible to accurately calculate health condition information by utilizing basal heart rate information. The biological information processing system includes a basal heart rate information acquisition section (120) that acquires basal heart rate information that represents the heart rate in a deep sleep state, a heart rate information acquisition section (110) that acquires heart rate information, and a health condition information calculation section (130) that calculates health condition information that represents a health condition based on relative information about the basal heart rate information and the heart rate information.
